The student or class will watch a video clip about how to decode a Vigenère Square Cipher.Next students will be able to use the cipher to crack a secret message of their own (teacher provided messages in a hat (not inlcuded)).  One student chooses the word or phrase, the teacher puts the key (word) on the board, that same student will encrypt the message and send it to their partner.  The partner with use the same key word to return the text to plain text revealing the message and send their guess back to their partner. Teachers can edit the message to fit their needs and make adjustments as desired.  This is one mini lesson out of a series of five (part 2) and can be used alone, or with other lessons in the series. Vigenère Square Ciphefrom the past.  Next students will be able to use a Pigpen cipher to crack a secret message of their own.  Teachers can edit the message to fit their needs and make adjustments as desired.  This is one mini lesson out of a series of five. Vigenère Square Ciphe